Extrinsic 23381-1

{
  "heartbeat": {
    "blockNumber": 23379,
    "sessionIndex": 389,
    "validatorsLen": 4,
    "authorityIndex": 2
  },
  "signature": "0xbcbb0dc723e4f5a8f203b4b8b7693c7983291051f72d3c209915797057560a6366b7dd3c04b861f9306b7c059a7a09ca0bcff60683528dd945c6eded3439658b"
}